Best of AOP - Star Clusters

NGC 2194

This is a relatively young open cluster located in the constellation Orion. It is surprisingly metal-poor (astronomers consider anything heavier than helium to be a metal). Stars in open clusters are typically formed from the remnants of several previously existing stars. As each star fuses new metals and expels them at the end of its lifetime, new stars are created with higher metallicities than existed previously. This cluster on the other hand, seems to have formed a bit outside of our galactic plane from a metal-poor gas cloud.

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Last Updated: 25-Jun-2014

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About This Image

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20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

Luminance = RGB (synthetic) binned 1x1

Red = 12 minutes binned 1x1

Green = 12 minutes binned 1x1

Blue = 12 minutes binned 1x1

Minimum credit line: Doug Matthews/Adam Block/NOAO/AURA/NSF